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Finding the Fourth Proportional to 64,812.60, 97,218.90 and 47,097.90

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Solution

The fourth proportional to 64,812.60, 97,218.90 and 47,097.90 is: 70,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.60 : 97,218.90 = 47,097.90 : x
  2. Step 2: Convert to fraction form
    64,812.60/97,218.90 = 47,097.90/x
  3. Step 3: Cross multiply
    64,812.60x = 97,218.90 × 47,097.90
  4. Step 4: Simplify right side
    64,812.60x = 4,578,806,030.31
  5. Step 5: Solve for x
    x = 4,578,806,030.31/64,812.60
  6. Step 6: Final answer
    x = 70,646.85

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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.