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Finding the Fourth Proportional to 7,111,702.80, 10,651,807.80 and 5,851,990.80

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Solution

The fourth proportional to 7,111,702.80, 10,651,807.80 and 5,851,990.80 is: 8,765,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111,702.80 : 10,651,807.80 = 5,851,990.80 : x
  2. Step 2: Convert to fraction form
    7,111,702.80/10,651,807.80 = 5,851,990.80/x
  3. Step 3: Cross multiply
    7,111,702.80x = 10,651,807.80 × 5,851,990.80
  4. Step 4: Simplify right side
    7,111,702.80x = 62,334,281,248,968.24
  5. Step 5: Solve for x
    x = 62,334,281,248,968.24/7,111,702.80
  6. Step 6: Final answer
    x = 8,765,029.00

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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.