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Finding the Fourth Proportional to 8,148,941.10, 12,223,411.65 and 8,148,941.10

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Solution

The fourth proportional to 8,148,941.10, 12,223,411.65 and 8,148,941.10 is: 12,223,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148,941.10 : 12,223,411.65 = 8,148,941.10 : x
  2. Step 2: Convert to fraction form
    8,148,941.10/12,223,411.65 = 8,148,941.10/x
  3. Step 3: Cross multiply
    8,148,941.10x = 12,223,411.65 × 8,148,941.10
  4. Step 4: Simplify right side
    8,148,941.10x = 99,607,861,576,903.81
  5. Step 5: Solve for x
    x = 99,607,861,576,903.81/8,148,941.10
  6. Step 6: Final answer
    x = 12,223,411.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.