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Finding the Fourth Proportional to 64,737.63, 89,317.08 and 39,254.22

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Solution

The fourth proportional to 64,737.63, 89,317.08 and 39,254.22 is: 54,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,737.63 : 89,317.08 = 39,254.22 : x
  2. Step 2: Convert to fraction form
    64,737.63/89,317.08 = 39,254.22/x
  3. Step 3: Cross multiply
    64,737.63x = 89,317.08 × 39,254.22
  4. Step 4: Simplify right side
    64,737.63x = 3,506,072,308.08
  5. Step 5: Solve for x
    x = 3,506,072,308.08/64,737.63
  6. Step 6: Final answer
    x = 54,158.18

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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.