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Finding the Fourth Proportional to 64,812.76, 97,219.12 and 15,564.76

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Solution

The fourth proportional to 64,812.76, 97,219.12 and 15,564.76 is: 23,347.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.76 : 97,219.12 = 15,564.76 : x
  2. Step 2: Convert to fraction form
    64,812.76/97,219.12 = 15,564.76/x
  3. Step 3: Cross multiply
    64,812.76x = 97,219.12 × 15,564.76
  4. Step 4: Simplify right side
    64,812.76x = 1,513,192,270.21
  5. Step 5: Solve for x
    x = 1,513,192,270.21/64,812.76
  6. Step 6: Final answer
    x = 23,347.14

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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.