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Finding the Fourth Proportional to 64,074.47, 88,430.28 and 53,300.30

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Solution

The fourth proportional to 64,074.47, 88,430.28 and 53,300.30 is: 73,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,074.47 : 88,430.28 = 53,300.30 : x
  2. Step 2: Convert to fraction form
    64,074.47/88,430.28 = 53,300.30/x
  3. Step 3: Cross multiply
    64,074.47x = 88,430.28 × 53,300.30
  4. Step 4: Simplify right side
    64,074.47x = 4,713,360,857.00
  5. Step 5: Solve for x
    x = 4,713,360,857.00/64,074.47
  6. Step 6: Final answer
    x = 73,560.67

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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.