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Finding the Fourth Proportional to 63,478.40, 87,599.68 and 34,798.16

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Solution

The fourth proportional to 63,478.40, 87,599.68 and 34,798.16 is: 48,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,478.40 : 87,599.68 = 34,798.16 : x
  2. Step 2: Convert to fraction form
    63,478.40/87,599.68 = 34,798.16/x
  3. Step 3: Cross multiply
    63,478.40x = 87,599.68 × 34,798.16
  4. Step 4: Simplify right side
    63,478.40x = 3,048,307,812.59
  5. Step 5: Solve for x
    x = 3,048,307,812.59/63,478.40
  6. Step 6: Final answer
    x = 48,021.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.