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Finding the Fourth Proportional to 43,280.71, 64,931.64 and 25,526.32

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Solution

The fourth proportional to 43,280.71, 64,931.64 and 25,526.32 is: 38,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.71 : 64,931.64 = 25,526.32 : x
  2. Step 2: Convert to fraction form
    43,280.71/64,931.64 = 25,526.32/x
  3. Step 3: Cross multiply
    43,280.71x = 64,931.64 × 25,526.32
  4. Step 4: Simplify right side
    43,280.71x = 1,657,465,820.76
  5. Step 5: Solve for x
    x = 1,657,465,820.76/43,280.71
  6. Step 6: Final answer
    x = 38,295.72

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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.