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Finding the Fourth Proportional to 64,885.80, 97,328.70 and 56,332.20

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Solution

The fourth proportional to 64,885.80, 97,328.70 and 56,332.20 is: 84,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.80 : 97,328.70 = 56,332.20 : x
  2. Step 2: Convert to fraction form
    64,885.80/97,328.70 = 56,332.20/x
  3. Step 3: Cross multiply
    64,885.80x = 97,328.70 × 56,332.20
  4. Step 4: Simplify right side
    64,885.80x = 5,482,739,794.14
  5. Step 5: Solve for x
    x = 5,482,739,794.14/64,885.80
  6. Step 6: Final answer
    x = 84,498.30

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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.