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Finding the Fourth Proportional to 7,030.77, 9,702.45 and 3,887.01

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Solution

The fourth proportional to 7,030.77, 9,702.45 and 3,887.01 is: 5,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.77 : 9,702.45 = 3,887.01 : x
  2. Step 2: Convert to fraction form
    7,030.77/9,702.45 = 3,887.01/x
  3. Step 3: Cross multiply
    7,030.77x = 9,702.45 × 3,887.01
  4. Step 4: Simplify right side
    7,030.77x = 37,713,520.17
  5. Step 5: Solve for x
    x = 37,713,520.17/7,030.77
  6. Step 6: Final answer
    x = 5,364.07

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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.